Using the technique devised in [1]}, the next-to-leading order term is given by
\(\phi _1(x)=g\frac{1}{N^2-1}\int d^4x^{\prime }\Delta _0(x-x^{\prime })\left[\sum _{q,i}\eta \cdot \gamma \cdot TS_{q}^{ii}(0)\right. & \nonumber \\\left.+\sum _{q,i}{\bar{q}}_1^i(x^{\prime })\eta \cdot \gamma \cdot T q_1^i(x^{\prime })\right].\) 
